37.201.0.0/16

ip:	37.201.0.0 ip-037-201-000-000.um10.pools.vodafone-ip.de
loc:	Germany, Freiburg im Breisgau (Baden-Wurttemberg)  
isp:	AS3209 Vodafone GmbH » Vodafone » Vodafone NRW GmbH 149.656 ms
route:	37.201.0.0/16, DE-KNRW-20120322 - Vodafone West GmbH, DE (Frankfurt am Main) ... 
reg:	37.201.0.0/16, DE, RIPE, 2012-03-22
asn:	AS3209 - VODANET Vodafone GmbH, DE
addr:	  Ferdinand-Braun-Platz 1 40549 Duesseldorf GERMANY
online:	  16.122 » latency: 51 ms (139ms) 

see also:
   37.201.0.0/17    AS3209   UNITYMEDIA-POOL-NET Unitymedia dynamic customer IP pool, DE
   37.201.128.0/17  AS3209   UNITYMEDIA-POOL-NET Unitymedia dynamic customer IP pool, DE